Does Marriage Equality Act Includes Polygamous Marriage?

As United States of America chief justice John Roberts wrote in his dissent that this supreme court decision in favor of marriage equality could be used by polygamists. He was right as yesterday morning in the state of Montana, it was tested by two polygamist by asking marriage license.

As I have mentioned earlier, still hoping to find the manuscript of the ruling and if ever there are parameters that comes with it. Surely, there are parameters, it is a natural path of a limited being. What are the parameters of the ruling? Please advise me on this matter.